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<p>Due to their low fabrication cost and simple structure, 2D transition metal dichalcogenides (TMDs): molybdenum diselenide (MoSe<sub>2</sub>), molybdenum ditelluride (MoTe<sub>2</sub>), and tungsten diselenide (WSe<sub>2</sub>) materials have attracted considerable attention as absorber layers of novel solar cells. In this study, we perform a comparative analysis of three solar cells based on these three TMDs as active layers where the electron and hole collector layers are TiO<sub>2</sub> and Cu<sub>2</sub>O, respectively. The effects on solar cell performance of temperature, active layer thickness and the density of defects inside and at the interface of this layer are calculated. The results, based on power conversion efficiency (η), open-circuit voltage (V<sub>oc</sub>), fill factor (FF), and short-circuit current (J<sub>sc</sub>) curves, show that with optimized parameters an efficiency of 23.76%, 27.38% and 30.16% for WSe<sub>2</sub>, MoSe<sub>2</sub> and MoTe<sub>2</sub> respectively can be attained, making it competitive with advanced perovskite, tandem, silicon, and perovskite-silicon solar cells. This study offers theoretical insights for designing high-performance solar cells, paving the way for future research and fabrication efforts.</p>

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Optimization of a high-efficiency solar cell based on the transition metal dichalcogenide WSe2, MoTe2 and MoSe2 using SCAPS-1D

  • 期刊论文

  • 发表日期：

    2025年6月4日

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  • M’hamed Semlal,
  • Mohamed Khuili,
  • El Houssine Atmani,
  • Nejma Fazouan

摘要

Due to their low fabrication cost and simple structure, 2D transition metal dichalcogenides (TMDs): molybdenum diselenide (MoSe2), molybdenum ditelluride (MoTe2), and tungsten diselenide (WSe2) materials have attracted considerable attention as absorber layers of novel solar cells. In this study, we perform a comparative analysis of three solar cells based on these three TMDs as active layers where the electron and hole collector layers are TiO2 and Cu2O, respectively. The effects on solar cell performance of temperature, active layer thickness and the density of defects inside and at the interface of this layer are calculated. The results, based on power conversion efficiency (η), open-circuit voltage (Voc), fill factor (FF), and short-circuit current (Jsc) curves, show that with optimized parameters an efficiency of 23.76%, 27.38% and 30.16% for WSe2, MoSe2 and MoTe2 respectively can be attained, making it competitive with advanced perovskite, tandem, silicon, and perovskite-silicon solar cells. This study offers theoretical insights for designing high-performance solar cells, paving the way for future research and fabrication efforts.